Yes, you can change both the cumin and jalapenos – you don’t want to change the amount of tomatoes or acidity (or drastically change the peppers). I think others in the comment thread have said bottled lime juice works ok as a substitute. I can’t speak to the canning safety on that, but it’s probably fine. Glad the blanching skin method is working so well!
Well first off I took your advice and bought a Breville Food processor ….I love it. Then I made your salsa recipe …. then I made more ….made over 50 pints and have about 12 left. I give it to everyone … then they want more. What a wonderful recipe ….I have given to people at work and then others come and ask me if I have more. yesterday I went and got 4 more bushels of tomatoes and here I go again. Thank you for the good tips and wonderful recipe.
If I could suggest–instead of all the calculating and worry about PH in this, or other recipes due to minor changes–I bought an electronic PH liquid meter from Amazon for about $12.99 and you just dip it in the liquid food, pool, or aquarium–and instant PH! Your salsa with my lime juice exchange was a comforting 3.6 PH. I would never just make up a canning recipe and depend on that inexpensive meter to be safe, but it lets me double check on all my tomatoes & water bath canning and the recipes I carefully choose for safety from Pinterest.
I have made this salsa for the last several summers and we love it! This year I have a bunch of extra peaches and I was wondering if you have ever added fruit to this recipe? My understanding from the class I took through the extension service is that it is not a problem to add fruit to a salsa as it is an acidic ingredient. I just wondered if you had ever tried.